Device for pumping oil from alpha well



Filed Feb. 8, 1950 2 Sheets-Sheet l A torney WMQQQQW@ Dett. 8, 1931. P, G, SHERRY 1,835,437

DEVICE FOR PUMPING OIL FROM A WELL Filed Feb. 8. 1930 2 Sheets-Sheet 2 f /n /V Tw@ l W /I /5 L Q i ,6.

5S .Z2-fx t w k b Inventor x/Z l), Jie/ff' 9' .y

By mi@ A orney Patented Dec. 8, 1931 UNITED, STATES PATENT OFFICE,

:amigar4 er. SHERRY, or snM-INoLR, OKLAHOMA, Assrsnoit or rivE-sIXTEENTHsjTo GILBERT n RDGERTON AND rIvE-sIxTnENTHs To PETER R. ALrHoNso, BOTH F SEMINOLE, OKLAHOMA- nnvicn roR PUMPING oir. FROM A WELTI 'Aplicatinfiea February s, 1930. serial Nn. 426,889.

This invention relates to a deviceV for forcV ing oil out of an oilwell, and the primary object of the invention is to provide a de'- vice of this character embodying an elongated tubular casing adapted to extend downsure for drawing oil from the well upwardly for exhausting the oil at the upper end of the device.

A still further object of the invention is to provide a device of this nature whichY is siml ple in construction, consists of but comparatively few parts, can be readily and easily assembled, expeditiously inserted within av well, not liable to easily become out of working order, and otherwise well adapted for the purpose designed. l

` Other objects and advantages ofthe invention will become apparent duringl a study of the following description, taken in connection with the accompanying drawings wherein; l' .f Y

Figure 1 is a longitudinal sectional view taken through the device. y

Figure 1a is a longitudinal sectional view taken through the device at the upper end thereof; f

Figure 1b isa continuation of Figure 1a and further is a longitudinal sectional view taken through the lower end of the device,

Figures 2 and 8 are horizontal cross sectional views taken substantially-0n line 2 2 of Figure 1b and Figure 1a respectively,

Figure 4 is anelevational view of the piston and piston rod therefor.

With reference morein detail to the drawings, it will be seen that my invention comprehends the provision of an outer elongated tubular casing 5 `open at its top` and bottom ends. The casing 5 isadapted tobe extended into the well, and said casing 5p'r0jecting beyond the lower end of the conventional well casing shown in broken `lines in Figure 1a and designated generally by the reference character C.

`The upper end of the tubular casing 5 extendsinwardly of the lower. endV of the conventional well casing as shown.

A collar orcoupling 6 at its upper end is provided internally with right4 hand threads 7 for threaded engagement with the lower complementary threaded end of the casing 5, said collar section at its lower end being provided with internal left handthreads 8, and in said lower end has threaded a boxing or annular member 9 as shown to advantage in Figure 15. .1

The boxing or annular member 9 has an internally threadedtapered opening 10, within whichis threaded a tapered plug 11, which plug 11 at its upper end is provided with. an externally threaded tubular extension 12, having a vertical bore 13 extending therethrough and through the plug 11. The upper end of the tubular extension 12.is beveled inwardly to provide a valve seat 14: for apurpose to be hereinafter made manifest.

The tubular extension 12 extends into and is threadedly engaged with the internally threaded lower end of a pipe section or workingV cylinder a. The pipe section or working cylinder a is of suitable length open at its upper end as apparent, and extends upwardly through the casing 5;

A `pipe section is complemental to the pipe section'a is arranged in the casing 5 in longitudinal alinement with said section a. A sleeve or coupling "15 has the lower end portionthereof internally threaded for engagement with the external threads on the upper. endrof the pipe section a as at 16.

At its upper end the coupling 15 is internally threaded for threaded engagement with the external threads on the lower end of the complemental pipe section ZJ as at 17 complemental pipe section b at its upper end is also externally threaded for engagement with the internally threaded tubular portion 20 of a coupling designated generally by the reference character 21.

The coupling 21 also embodies an enlarged internally threaded upper cylindrical portion 22 for threaded engagement with the externally'threaded lower end of an upper tubing section designated generally by the reference character c. The tubing section c extends upwardly beyond the upper end of the casing 5, throughy the well casing C to the surface or to the top of the oil well.

The lower portion of the casing section c Within the upper end of the casing 5 is perforated about its periphery as at 23.

Above the upper end of the casing 5 the tubular section b is externally threaded as at 24 for threaded engagement with the internally threaded neck 25'formed on the upper reduced end 26 of a coupling member 27 disposed circumjacent the tubing section b and.

having its lower edge in abutting relation with the upper edge of the casing 5.

A suitable annular coupling member 27 is internally threaded, for threaded engagement with said member 26 and casing 5 at the abutting ends of said member 26 and casing 5 as shown to advantage in Figure la.

An elongated pipe or tubing 28 extends through the upper tubing section c and has its lower or inner end tapered as at 29'for conformably fitting within the tapered bore 30 of a coupling ring 31 which coupling ring 31 is externally threaded for threaded engagement with the internal threads formed in the lower end of said casing section c as at 32. (See Figure 1a.)

The coupling ring 31 thus provides a iiuid tight joint between the adjacent end of the tube 28 and casing section 0 within the enlarged cylindrical portion 22 of the coupling member 21.

As shown to advantage in Figure 1b, the lower tube section aupwardly' from its lowermost end is provided on diametrically opposite sides with intake ports 33 and 34 respectively, the intake port 34 being disposed on a plane above the intake port 33, and these ports 33 and 34 are controlled by a piston 35 adapted for reciprocatory movement within the lower tube section a beneath or in advance of an upper `piston 36, which piston 36 is also adapted for reciprocatory movement within the lower tubing section a or working cylinder as herein before referred to, for controlling dianietrically opposite ports 37 and 38 respectively, in the pipe or tube section a above the ports 33 and 34, it being also noted that theport 38 is disposed on a plane above the port 37, and that consequently all the ports, 33,34, 37 and 38 are thus arranged in 'alternate relation on diametrically opposite sides of the casing section a.

Each of the pistons 35 and 36 are suitably provided with packing rings 39, there being preferably two packing rings for each piston. The lower piston 35 is provided with a tapered lower end portion 40 to facilitate the lower piston 35 conformably engaging the valve seat 14, so that it will be noted the piston 35 also acts as a valve for controlling the intake passage or bore 13 which extends through the member 11 and its cylindrical extension 12 to constitute an intake passage communicating with the lower tube section a.

It is also to be noted, that the box 9 and member 11 cooperate to provide a bottom or lower end closure for the passage 41 between the spaced casing 5 and the tube sections a and I), for a purpose to be presently made manifest.

A relatively short connecting rod 42 has its lower end threadedin a suitable socket formed in the top of the lowermost piston 35, the upper end of the rod 42 being threaded within a socket opening inwardly from the bottom of the upper piston 36 as shown to advantage in Figure 1b.

An elongated piston rod 43 has its lower end threaded within a complementarily threaded socket opening inwardly from the top of the uppermost piston 36, and this piston rod 43 extends upwardly through a central opening provided therefor in the disk or washer 18, the upper end of the piston rod extending upwardly through the tube section Z);

Mounted on the upper end of the piston rod 43 is a perforated washer 44 and a nut 45 is threaded on the upper end of the piston rod 43 for retaining the washer 44 thereon. A coil spring 46 is convoluted about the upper end of the piston rod 43 one end of said coil spring 36 resting .upon the washer 18, and the upper end of the coil spring impinging against the washer 44 for normally urging the piston upwardly of the tubing section a above the ports 33, 34, 37 and 38.

The operation of my device may be brieiy set forth as follows:

Pressure is forced through the pipe 28 to pass through the tubing sections a and for acting upon the pistons 36 and 35 for urging the pistons downwardly against the action of the spring 46 to seat the lower piston 35 upon its seat 14, and upon release of pressure the pistons 35 and 36 are then moved upwardly of the working cylinder a under action of the spring 46, whatever pressure remaining in the cylinder a will of course exhaust therefrom through the port in the lower end of the cylinder a. This upward movement of the pistons will of course create sufficient suction for drawing oil lfrom the well into the passage 13, so that as the pistons pass upwardly to uncover the ports 33, 34, 37 and 38, the oil so drawn in will pass throughthe 'ports into the space 41. As is obvious, as pressure is again applied to the pistons for moving the same the tubing or cylinder a through said ports will cause to force the oil to rise in thespace 41, and the rising oil will pass through the apertures 23 into the space 48 betweenthe tubing section 0 and the pressure pipe 28 to be drawn `upwardly to a'suitable receptacle provided therefor at the top of the well or any other place exteriorly of the well.

It is thought that from the foregoing description, taken in connection with the accompanying drawings, a clear understanding of the operation, construction, utility'and advantages of a device of this character will be had by those skilled in this art without a more detailed description thereof.

Even though I have herein shown and described the preferred embodiment of my invention it is to be understood that the same is susceptible to changes fully comprehended by the spirit of the invention as herein described and claimed, and the scope of the appended claims.

Having thus described my invention, what l claim as new is:

through providing an intake passage for said inner tubular member, and spring controlled spaced apart pressure actuated members adapted for reciprocatory movement within said inner tubular member, one of which constitutes means for controlling said intake passage and to provide suction for drawing fluid interior-ly of said inner tubular mem.- ber when moved in one direction.

2. ln a device for .drawing fluid from a well, inner and outer spaced tubular members,

a member threaded in the lower end of the inner tubular member and having a bore therethrough providing an intake passage for said inner tubular member, and spring controlled spaced apart pressure actuated members adapted for reciprocatory movement within said inner tubular member, one of wiich reciprocating members constitutes means for controlling said intake passage and to provide suction for drawing fluid interiorly of said inner tubular member when moved in one direction, and said inner tubular member at the lower end thereof being `provided with ports controllable by said pressure actuated member whereby lui d from the well may be trapped in the space between said inner and outer tubular members, and the pressure utilized for actuating said preslsure actuated members is exhausted from said outer inner tubular member into said space for forcing the oil upwardly thereof.

3. In a device of the class described for drawing fluid, inner and outer spaced tubular members, a member threaded in the lower end of the inner tubular member and having a bore therethrough providing an intake passage for saidI inner tubular member, and sgring controlled spaced apart pressure actuated members adapt-ed for reciprocatory mov-i t within d inner tubular member, one of which constitutes means for controlling said intalre passage and to provide suction for drawng fluid interiorly of said inner tubular member when move-d in one direction, and said inner tubular member at the lower end thereof being provided with ports controllable by said pressure actuated members whereby 'fluid from the well may betrapped in the space between said inner and outer tubular members, an.r the pressure utilized for actuating said pressure actuated members is exhausted from said inner tubular member into said space for forcing the oil i'invard y thereof, said inner tubular memcomprisiiig plurality of open ended sections coupled 'n end to end relation and the uppermost of said sections having a perforated lower end portion. Y

4.* ln a device for drawing fluid, inner and iced tubular members, means for closing'the upper end of the outer tubular member, mems for closing the lower end of said outer tu, Lilar member, a iber threaded in the lower end of the inner tubular member and having a bore therethrough 1aroviding an intake passage for said inner tubular member, and sprin controlled spaced apart pressure actuated members adapted for reciprocatory movement within said inner tubular member, and to provide suction for drawing fluid interiorly of said inner tubular niember when moved in onel direction, one of said pressure actuated members controlling said intalre passage, and said inner tubular member at the lower end thereof being provided with ports controllable by said pressure actuated members whereby fluid from the well may be trapped in the space between said inner and outer tubular members, and the pressure utilized for actuating said pressure actuated members is exhausted from said inner tubular member into said space for foreing the oil upwardly thereof, said inner tubular .iember comprising a plurality of open ended sections coupled in endvto end relation and the uppermost of said sections having a perforated lower end portion, a pres-sure pipe extending into said last mentioned section and having the wall thereof in spaced ,g reen said section and said pressure IHApe tbe bottom of this space.

5. In a device for drawing fluid from a well, inner and outer spaced tubular members, means for closing the upper end of the outer tubular member, lneans for closing the lower end of said outer tubular member, a member threaded in the lower end of the inner tubular member and having a. bore therethrough providing an intake passage for said inner tubular member, and spring controlled spaced apart pressure actuated members adapted for reeiprocatory movement within said inner tubular member, and to provide suction for drawing fluid interiorly of said inner tubular member when nioved in one direction, one of said pressure actuated members controlling said intake passage and said inner tubular member at the lower end thereof being provided with ports controllable by said pressure actua-ted members whereby fluid from the well may be trapped in the space etween said inner and outer tubular members, and the pressure utilized for actuating said pressure actuated members is exhausted from said inner tubular member into said space for forcing the oil upwardly thereof, said inner tubular member comprising a plurality of open ended sections coupled in end to end relation and the uppermost of said sections having a perforated lower end portion, a pressure pipe extending into said last mentioned section and havin T the wall thereof in spaced relal tion to said last mentioned section to provide an oil receiving space therebetween, and an annular member threaded within the lower end of said one section for closing the space between said section and said pressure pipe at the bottom of this space, said pressure actuated member comprising a pair of pistons, and said last mentioned annular member having a tapered bore, said pressure pipe having a lowered tapered end fitting conformably within said bore.

G. In a device of the class described, inner and outer spaced tubular members forming therebetween a liquid passage having communi-cation at the lower end thereof with the inner tubular member, a pressure pipe pipe concentrically arranged within the upper portion of the inner tubular member and forming therebetween a liquid receiving and discharge chamber havin@ communication with said passage, said inner tubular mem-4 ber'having an intake passage in the lowerl end thereof, a valve seat at the inner end ofv the intake passage, a pair of spaced alignedV PHILLIP G. SHERRY. 

